When I was a kid, I remember my parents used to try to pay for everything with their Discover card and would only use their Visa as a fallback. I was too young

When I was a kid, I remember my parents used to try to pay for everything with their Discover card and would only use their Visa as a fallback. I was too young to understand the differences between credit cards at the time, but I remembered my parents always asking "do you take Discover?" everywhere we went. I never realized this wasn't just something only my parents did until I saw the Futurama joke about this years later: https://www.youtube.com/watch?v=2-nSwKOVZyk https://www.youtube.com/watch?v=2-nSwKOVZyk Fry: Do you take Visa? Cashier: Visa hasn't existed for 500 years Fry: American Express? Cashier: 600 years Fry: Discover? Cashier: Sorry, we don't take Discover